Optimizing water use strategies in arid coal mining areas: the synergistic effects of layered soil profiles and arbuscular mycorrhizal fungi on plant growth and water use efficiency

Wu, Chao; Bi, Yinli; Zhu, Wenbo; Xue, Chao

doi:10.1016/j.envexpbot.2024.105722

Cited by 1 publication

(1 citation statement)

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“…The natural balance in the cycle of substances changes, chemical elements are involved in active geochemical migration, and the biomass of plants and microorganisms is redistributed [6]. Negative consequences such as a reduction in soil moisture and nutrient removal [14,15], heavy metal pollution [16,17], the weathering of rocks, and a change in the pH of the environment [18] are observed. Nearby areas are contaminated by subdump effluents from mining operations by infiltration and particulate erosion material by aerogenic means [19].…”

Section: Introductionmentioning

confidence: 99%

Microbiomes of Primary Soils and Mining Heaps of Polymetallic Ore Quarries

Dorogaya,

Abakumov,

Zverev

et al. 2024

Applied Sciences

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This research evaluates the development of microbiomes in primary soils, forming in various mining dumps in the arid terrain in the Republic of Bashkortostan, Russia. A metagenomic analysis of the communities was performed by sequencing extended gene sequences. The evaluation of the agro-chemical properties was in accordance with conventional pedology methods. Inverse voltammetry was used to measure the heavy metals (lead, cadmium, mercury, zinc, copper, and nickel) and arsenic content. In all the samples studied, Actinobacteria and Proteobacteria phylas dominated, and, in smaller numbers, Acidobacteria and Bacteroidetes were present. In the natural samples, the proportion of Actinobacteria was higher, and the proportions of Proteobacteria and Bacteroidetes were lower than in the samples from anthropogenically disrupted soils. Verrucomicrobia bacteria and Thaumarchaeota archaea were not found in the forming soils of the Kulyurtau and Tubinsky quarries, although in all other samples, there was a significant content of representatives of these types. Soil formation was observed at the Kulyurtau and Tubinsky mines, with a self-restoration period of more than 30 years. The microbial communities of the forming soils were similar in species richness to the background soils, and the alpha diversity showed a high level of dispersion, although the beta diversity had a different clustering, but the absence of Verrucomicrobia and Thaumarchaeota phyla in the samples from both sites indicates the underdevelopment of new soils compared with the natural background. Agrochemical indicators showed a dependence on the type of growing vegetation and the degree of anthropogenic load, and the correlation with the microbial composition of soils was traced poorly.

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